Add doc for Linux users building from source.

diff --git a/xmldoc/chapters/build.xml b/xmldoc/chapters/build.xml
index abc68c53cf84b68efec64c0e555b492f41aeb9be..67284051c3436355ac56cb4f01806cc2131c68e5 100644 (file)
--- a/xmldoc/chapters/build.xml
+++ b/xmldoc/chapters/build.xml
@@ -23,10 +23,14 @@ Linux, Solaris, and a variety of processors and compilers.
 <para><userinput> ./configure &amp;&amp; make</userinput></para>
   <para><ulink url="http://expat.sourceforge.net">Expat</ulink> 
 is strongly recommended for source builds as it is
-required for reading all the XML formats such as GPX.
+required for reading all the XML formats such as GPX.  Fedora users
+may need to 'yum install expat-devel'.  Ubutnu users may need to 
+'apt-get install expat libexpat-dev'.
 </para>
   <para><ulink url="http://libusb.sourceforge.net">libusb</ulink> 
 is recommended for OS/X and Linux if you want to use a USB Garmin.
+Fedora users may need to 'yum install expat-devel'.  Ubutnu users may
+need to 'apt-get install libusb-dev'.
 </para>
 <para>There are additional flags that can be passed to configure to
  customize your build of GPSBabel.